2. There is one set of drilling unit on each side. Every drilling unit can be installed with three drills of different dimensions. The drilling unit can realize the CNC movement holistically for change of drilling stadia, therefore to ensure the accuracy of holes.

3. Rotation speeds of all spindles are stepless adjustment realized by transducer, and feeding speeds are also stepless adjustment realized by speed regulating valves. Transform of the rapid feeding, work feeding, and rapid withdrawing of spindles all are finished automatically.

4. One marking unit in the drilling line. Marking stadia can be preset conveniently. Marking, clamping of the workpiece and infeed of the drilling are driven by the hydraulic system. Main components are imported. Circulate cooling system is applied so as to prolong the life of drills.

5. All marking and drilling in automatic completeness, all finished angles can be unloaded by pneumatic turnover device so as to lighten the working strength of workers with well advantages than other manufacturers.

6. The control system consists of the host computer, servo motor, PLC, external monitoring switch, etc. Just input the dimension of the workpiece, the processing program will be generated automatically. Besides, the program can be saved, selected, displayed and communicated as per the workpiece No.

7. The machining line installs supporting & pressing device to meet the requirements of processing angles with bigger bending.